Yuichiro Umeharaas protagonist Seiya Ryūgūin, the absurdly cautious hero that the rookie goddess Ristarte summoned. While his stats are absurdly high, nothing is higher than his caution stat.

Aki Toyosaki as Ristarte, a newly minted goddess of healing. He summoned Seiya in order to save the world of Geabrande, a world of S-class difficulty level, but she ends up with a hero with an overly cautious nature.

The story begins when the goddess Rista summons a hero to help her hard mode video game-like world. The hero, Seiya, is exceptional in every way, but he is incredibly cautious. He does things like buy three sets of armor (one to wear, a spare, and a spare for the spare) and go full power against weak slimes (just in case).

Tsuchihi launched the novel series on the Kakuyomu website in June 2016, and Kadokawa published the first volume in print with illustrations by Saori Toyota in February 2017. The fifth volume shipped last November, and the sixth will ship on October 10. Yen Presslicensed the novels, and shipped the first volume on June 18.